Shannon Marie Sullivan is an actress, and has appeared in two TV series episodes. In 2012, she guest starred as Brooke in an episode of CBS cop drama 'Blue Bloods.' The episode was called 'Collateral Damage.' It aired during the show's second season. The following year, Sullivan played Karen Mills in an episode of CBS action/adventure series 'Person of Interest.' The episode was titled 'Nothing to Hide.' It aired during the show's third season.